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pwm: Add Raspberry Pi Firmware based PWM bus
authorNicolas Saenz Julienne <nsaenzjulienne@suse.de>
Mon, 18 Jan 2021 12:32:44 +0000 (13:32 +0100)
committerNicolas Saenz Julienne <nsaenzjulienne@suse.de>
Mon, 22 Mar 2021 16:59:52 +0000 (17:59 +0100)
commit79caa362eab6569297210eda375d6ea358a81161
tree46d19f76d7c743728e0202bc6a11701a98b6a0c3tree
parenta953e68ef2df657d8b65e16370e5808ec5819f23commit | diff
pwm: Add Raspberry Pi Firmware based PWM bus

Adds support to control the PWM bus available in official Raspberry Pi
PoE HAT. Only RPi's co-processor has access to it, so commands have to
be sent through RPi's firmware mailbox interface.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
drivers/pwm/Kconfig diff | blob | history
drivers/pwm/Makefile diff | blob | history
drivers/pwm/pwm-raspberrypi-poe.c [new file with mode: 0644] blob
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